Causes of brittle nails are many. Anything from iron and zinc deficiency, to the use of harsh detergents, nail polishers and nail polish removers can make them chip and break.
Cuticles do provide some protection from all these agents,but they are not enough. Using nail hardening treatments regularly will enhance their appearance and health. They will make them stronger and less prone to damage.

Hot Oil Brittle Nail Treatment:

 1/4 olive oil
 1 capsule of Vitamin E
1.Heat the oil and let it cool down until it is warm to the touch
2.Add Vitamin E and gently rub the cuticles and nails
3.Use the excess oil to massage the hands.
4.Olive oil enhances the strength and flexibility, while Vitamin E oil nourishes the nails.

1.Grind the walnuts until they are in a form of a coarse powder
2.Add to that olive oil, castor oil and honey so it resembles a thick paste
3.Rub the hands and nails
4.Rinse with warm water and pat dry
5.Use this recipe twice a week to see the results.

Castor oil greatly benefits the nails. When olive oil is added, the nails' flexibility is enhanced. Walnuts provide friction that removes the dead skin cells and at the same time replenish the skins moisture.

Honey is a wonderful, natural antiseptic and antibacterial agent that inhibits the growth of bacteria. It also has a high concentration of potassium which aids the hand treatment.